/*
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package io.trino.operator;

import io.trino.spi.Page;

/**
 * Equals and hash evaluated at the specified page positions. Implementations need to be hash table friendly.
 * <p>
 * Note: this usage is likely to be megamorphic, so use at your own risk!
 */
public interface PageWithPositionEqualsAndHash
{
    boolean equals(Page left, int leftPosition, Page right, int rightPosition);

    long hashCode(Page page, int position);
}
